1. Consultant in Restorative Dentistry, Department of Restorative Dentistry and Traumatology, King's College Hospital Dental Institute, London SE5 9RW ()
2. Specialist Registrar, King's College London and William Harvey Hospital, Ashford, Kent
3. Department of Restorative Dentistry and Traumatology, King's College Hospital, Denmark Hill, London SE5 9RW, UK